Octadecyltrimethylammonium bromide
Also known as: Stearyltrimethylammonium bromide, Trimethyloctadecylammonium bromide, Trimethylstearylammonium Bromide, N,N,N-Trimethyl-1-octadecanaminium bromide, N,N,N-Trimethyloctadecan-1-aminium bromide, 1-Octadecanaminium, N,N,N-trimethyl-, bromide, Octadecyl trimethyl ammonium bromide, Octedecyl trimethyl ammonium bromide, Stearyl Trimethyl Am, Trimethyl(octadecyl)aminium bromide, EINECS 214-294-5, MFCD00043171
Octadecyltrimethylammonium bromide (CAS 1120-02-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H46BrN and a molecular weight of 392.501 g/mol. Key property: a melting point of ~250 °C (dec.)(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 1120-02-1
- Jingsj CID
- J-1110594-1
- Molecular Formula
- C21H46BrN
- Molecular Weight
- 392.501 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | ~250 °C (dec.)(lit.) |
|---|---|
| Exact Mass | 391.281342 |
| LogP | 3.95810 |
| Additional Property | soluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | IC50: 1.9 μM (Dynamin I)[1] |
|---|
Customs & Trade Information
| HS Code | 2923900090 |
|---|---|
| Summary | 2923900090 other quaternary ammonium salts and hydroxides。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Octadecyltrimethylammonium bromide?
The CAS number of Octadecyltrimethylammonium bromide is 1120-02-1.
What are the molecular formula and molecular weight of Octadecyltrimethylammonium bromide?
Octadecyltrimethylammonium bromide has molecular formula C21H46BrN and molecular weight 392.501 g/mol.
Which suppliers offer Octadecyltrimethylammonium bromide?
1 supplier(s) listed; request a quote for pricing.
Is Octadecyltrimethylammonium bromide hazardous?
Octadecyltrimethylammonium bromide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of Octadecyltrimethylammonium bromide?
For Octadecyltrimethylammonium bromide, Upstream Products: 1-Bromooctadecane, Trimethylamine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Octadecyltrimethylammonium bromide (CAS 1120-02-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1110594-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.